If you're unable to find the option to enable side conversations in Zendesk, it might be due to your subscription plan. Side conversations are available on Suite Professional plans and higher. If your account is on a legacy version, you might need the Collaboration add-on to access this feature.
For more details on the current Suite plans and features, you can check out the article: About the Zendesk Suite plan types. If you're on a legacy version, you might want to look into the article: About Zendesk product legacy add-ons.
To enable side conversations in Zendesk, you need to be on a Suite Professional plan or higher. This feature is not available on lower-tier plans. If your account is on a legacy version, you may need the Collaboration add-on to access side…
The Collaboration add-on might be necessary for enabling side conversations if your Zendesk account is on a legacy version. This add-on provides access to features that are not available in older versions of Zendesk. For more information on legacy…